sonar fixes

guardian/serializers.py

@@ -36,6 +36,7 @@ from django.utils.translation import gettext as _
 
 # In this serializer file
 # define user serializer,
+# define password validation
 # create guardian serializer,
 # task serializer,
 # guardian serializer,
@@ -47,6 +48,7 @@ from django.utils.translation import gettext as _
 from rest_framework import serializers
 
 class PasswordValidator:
+    """Password validation"""
     def __init__(self, min_length=8, max_length=None, require_uppercase=True, require_numbers=True):
         self.min_length = min_length
         self.max_length = max_length
@@ -57,6 +59,7 @@ class PasswordValidator:
         self.enforce_password_policy(value)
 
     def enforce_password_policy(self, password):
+        # add validation for password
         special_characters = "!@#$%^&*()_-+=<>?/[]{}|"
         if len(password) < self.min_length:
             raise serializers.ValidationError(
@@ -64,16 +67,20 @@ class PasswordValidator:
             )
 
         if self.max_length is not None and len(password) > self.max_length:
+            # must be 8 character
             raise serializers.ValidationError(
                 _("Password must be at most %(max_length)d characters long.") % {'max_length': self.max_length}
             )
 
         if self.require_uppercase and not any(char.isupper() for char in password):
+            # must contain upper case letter
             raise serializers.ValidationError(_("Password must contain at least one uppercase letter."))
 
         if self.require_numbers and not any(char.isdigit() for char in password):
+            # must contain digit
             raise serializers.ValidationError(_("Password must contain at least one digit."))
         if self.require_numbers and not any(char in special_characters for char in password):
+            # must contain special character
             raise serializers.ValidationError(_("Password must contain at least one special character."))